Overall, it's not a bad hotel. Good location for exploring Avignon, just a short stroll to the Pope's Palace, plenty of places to eat nearby. It's an old building with plenty of character.
As it's in the old town there is very limited transport nearby, but it's only 10-15 minutes walk to the station and the other benefits of the location outweigh that minor disadvantage.
The only problem we had was that it was quite noisy. We seemed to be overlooking the main AC and kitchen so there was a constant drone even with the windows closed. The internal AC unit also wasn't the quietest, but at least it was effective. Only other minor problem was to do with housekeeping who were a bit lax. One day they removed the towels but didn't leave replacements, and both shampoo and shower gel ran out and weren't replaced until we asked.
We didn't eat, but the breakfast looked popular. Plenty of places nearby to eat or pick up pastries, including the market hall.